2011 Toyota Tacoma Prerunner on 2040-cars

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Toyota to buck engine downsizing trend, may go larger and turbo-free

Turbocharging isn't really Toyota's specialty, and the Japanese automaker isn't being shy about acknowledging it. Koei Saga, a senior managing officer in charge of drivetrain research and development, says that eschewing turbos and increasing displacement of engines using the Atkinson cycle can produce better power gains without sacrificing fuel economy, Automotive News reports.
Toyota is investing heavily in larger-displacement Atkinson-cycle engines in addition to turbocharged engines, but Saga doesn't think the automaker will use turbocharging across many product lines. He apparently remains unconvinced that the technology "makes the world better."
In Toyota's eyes then, Atkinson cycle engines do make the world better, and here's how. Their pistons complete four processes - intake, compression, power and exhaust - in one revolution of the crankshaft, and the power stroke is longer than the compression stroke. Traditional Otto cycle engines require two crankshaft revolutions to accomplish those same four operations and have equal-length compression and power strokes. Atkinson cycle engines are more efficient, but less power dense, though increasing displacement can offset that shortfall.

Toyota TRD Pro Chase Trucks are ready to hit the desert at SEMA

Toyota marks the 35th anniversary of its Toyota Racing Development performance arm this year, and the division is celebrating at this year's SEMA Show with a quartet of tuned off-roaders based on on the 4Runner, Tacoma and Tundra that look more than ready to go just about anywhere.
All four of them will take part in this year's Baja 1000 race, but only the Tundra (far left in the above photo) is actually competing. The other three will be there to act as support vehicles.
Inspired by the production TRD Pro Series trucks, the 4Runner, Tacoma and Tundra are prepared by off-road fabricator N-Fab with a mix of TRD and the company's own parts to be able to take whatever the grueling, 1,000-mile can throw at them. The trio is fettled with extra communications equipment, GPS, additional lights and all sorts of body and suspension modifications to help them survive the ordeal.

VW Finds CO2 'Irregularites', SEMA Recap, and More | Autoblog Minute

Volkswagen's diesel emissions scandal gets a new wrinkle, US regulators hit Takata Corporation with a substantial fine, and we head to Vegas for a look at tuner paradise at the 2015 SEMA show. Autoblog Senior Editor Greg Migliore reports on this edition of Autoblog Minute Weekly Recap. Acura Chevrolet Honda Mazda Mitsubishi Toyota Autoblog Minute Videos Original Video Acura Legend